CN109193055A - A kind of applying waste lithium ionic power battery cascade utilization screening method - Google Patents
A kind of applying waste lithium ionic power battery cascade utilization screening method Download PDFInfo
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- CN109193055A CN109193055A CN201810901626.8A CN201810901626A CN109193055A CN 109193055 A CN109193055 A CN 109193055A CN 201810901626 A CN201810901626 A CN 201810901626A CN 109193055 A CN109193055 A CN 109193055A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The invention discloses a kind of applying waste lithium ionic power battery cascade utilization screening methods comprising has the following steps: step S1, carries out discharge treatment to applying waste lithium ionic power battery pack；Step S2 selects the underproof single battery of appearance and carries out dismantling processing；Step S3 carries out open-circuit voltage and internal resistance detection to the single battery of appearance qualification, open-circuit voltage and the underproof single battery of internal resistance is disassembled；The single battery of step S4, open-circuit voltage and internal resistance qualification carries out consumable electrical testing, and the single battery that consumable electricity is greater than the set value is disassembled；The single battery of step S5, open-circuit voltage and internal resistance qualification carries out volume test, and the single battery that capacity is less than preset value is disassembled；Appearance, open-circuit voltage, internal resistance and the close single battery of capacity are divided into same rank, and are combined into new battery pack by step S6.The close single battery of parameter is combined into new battery pack by the present invention, and then improves the utilization rate of old and useless battery, effectively reduces the wasting of resources.
Description
Technical field
The present invention relates to old and useless batterys to recycle processing method more particularly to a kind of applying waste lithium ionic power battery echelon benefit
Use screening technique.
Background technique
Currently, China has become global maximum new-energy automobile market, electric car sales volume in 2014 is 70,000,
2015 300000, reach 500,000 within 2016.As electric car critical component battery gradually expires, power electric
Pond learies are also increasing.Expecting the year two thousand twenty China Vehicular dynamic battery demand will will reach up to 125Gwh, learies
32Gwh, waste battery conversion are that quality is up to about 500,000 tons；To the year two thousand thirty, Vehicular dynamic battery learies will reach 101Gwh,
Scrap about 1,160,000 tons of power battery amount.
Waste and old power lithium-ion battery recycling mainly has two modes at present, first is that echelon utilizes: under battery capacity
Drop to the battery that original 70-80% can not be continued to use on electric car, carry out echelon utilization, can continue other field such as
Power energy storage, low-speed electronic vehicle, hardware tool etc. continue to use certain time as power supply；Second is that dismantling recycling: mainly for
Battery capacity drops to 50% hereinafter, such battery can not continue to use, and by battery can only disassemble and resource utilization benefit
With.
It sees on the whole, since the Development of Electric Vehicles time is not grown, power battery waste material just largely entered market at nearly 2 years.
The recycling of China's power battery also in the initial stage, for different types of power lithium-ion battery no matter dismantling,
Echelon utilizes and comprehensive utilization of resources aspect lacks mature technology.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, providing a kind of applying waste lithium ionic power
Battery cascade utilization screening method, this method obtain the ginseng of single battery by being observed old and useless battery, being measured, compared
Number, and the close single battery of parameter is combined into new battery pack, and then improve the utilization rate of old and useless battery, and reduce money
Source waste.
In order to solve the above technical problems, the present invention adopts the following technical scheme that.
A kind of applying waste lithium ionic power battery cascade utilization screening method comprising have the following steps: step S1, to waste and old
Lithium-ion-power cell packet carries out discharge treatment；Step S2 selects the underproof single battery of appearance and carries out dismantling processing；Step
S3 carries out open-circuit voltage and internal resistance detection to the single battery of appearance qualification, by open-circuit voltage and the underproof monomer electricity of internal resistance
Pond dismantling；The single battery of step S4, open-circuit voltage and internal resistance qualification carries out consumable electrical testing, and consumable electricity is greater than the set value
Single battery dismantling；The single battery of step S5, open-circuit voltage and internal resistance qualification carries out volume test, capacity is less than pre-
If the single battery dismantling of value；Appearance, open-circuit voltage, internal resistance and the close single battery of capacity are divided into same level-one by step S6
Not, and it is combined into new battery pack.
Preferably, in the step S1, the discharge current c rate of discharge process is 0.2C~0.5C, discharge current maximum value
No more than 50A.
Preferably, it is comprised the following processes in the step S1: checking battery bag parameter, calculate battery pack by battery type
Series-parallel system then end for single Zhi Fang electricity to 2.5V if ferric phosphate lithium cell, it is if ternary lithium battery, then single
Zhi Fang electricity ends to 3.0V, and makes its state-of-charge SOC 3%~5%.
Preferably, in the step S1,2 hours are stood after battery pack electric discharge.
Preferably, the step S3 is comprised the following processes: the open-circuit voltage of each single battery is recorded, and with mark
The open-circuit voltage of quasi- single battery compares, by voltage value 1.0V ferric phosphate lithium cell below and voltage value 2.0V with
Under ternary lithium battery carry out dismantling processing.
Preferably, the step S3 further includes following process: being recorded to the internal resistance of each single battery, and and standard
The internal resistance of single battery compares, and the be above standard single battery of internal resistance of single cell value 20% of internal resistance value is carried out at dismantling
Reason.
Preferably, it is comprised the following processes after the step S3: the qualified single battery parallel connection 24 of step S3 detection is small
When, until the open-circuit voltage of each single battery is identical, then open-circuit voltage of the open-circuit voltage before in parallel with single battery is opposed
Than, and recording voltage goes up and down data.
Preferably, further include following process after the step S3: by the single battery after parallel connection temperature be 40 DEG C~
Shelve 3-5 days, or shelve at room temperature 7-10 days under the conditions of 55 DEG C, detect later and record single battery open-circuit voltage and
Internal resistance, then compared with the open-circuit voltage before shelving, dismantling processing is carried out to the single battery of voltage phase difference 50MV or more.
Preferably, the step S5 is comprised the following processes: using discharge current c rate be 0.5C as standard to single battery into
Row charge-discharge test obtains the battery capacity of single battery, and the single battery to battery capacity SOH less than 50% is disassembled
Processing.
Preferably, the step S5 further includes following process: with standard single battery state-of-charge, capacitance-voltage curves,
Internal resistance assesses the health status of single battery according to open-circuit voltage and internal resistance size measured in step S3 as reference.
In applying waste lithium ionic power battery cascade utilization screening method disclosed by the invention, old and useless battery packet is put first
Electricity is picked out underproof single battery further according to appearance degree and is disassembled, and opens a way to the single battery of appearance qualification
Voltage and internal resistance detection, then open-circuit voltage and the underproof single battery of internal resistance are disassembled, capacity is carried out to single battery later
Test, dismantling capacity be less than preset value single battery, finally by appearance, open-circuit voltage, internal resistance and capacity it is close monomer electricity
Pond synthesizes new battery pack.Based on the above process, the present invention obtains monomer by observing old and useless battery, measuring, compare
The parameter of battery, and the close single battery of parameter is combined into new battery pack, and then improve the utilization rate of old and useless battery, have
Effect reduces resource waste.
Detailed description of the invention
Fig. 1 is the flow chart of applying waste lithium ionic power battery cascade utilization screening method of the present invention.
Specific embodiment
The present invention is described in more detail with reference to the accompanying drawings and examples.
The invention discloses a kind of applying waste lithium ionic power battery cascade utilization screening methods, please refer to Fig. 1 comprising have
Following steps:
Step S1 carries out discharge treatment to applying waste lithium ionic power battery pack；
Step S2 selects the underproof single battery of appearance and carries out dismantling processing；
Step S3 carries out open-circuit voltage and internal resistance detection to the single battery of appearance qualification, not by open-circuit voltage and internal resistance
Qualified single battery dismantling；
The single battery of step S4, open-circuit voltage and internal resistance qualification carries out consumable electrical testing, by consumable TV university in setting
The single battery of value is disassembled；
The single battery of step S5, open-circuit voltage and internal resistance qualification carries out volume test, and capacity is less than preset value
Single battery dismantling；
Step S6 is divided into same rank according to appearance, open-circuit voltage, internal resistance and the close single battery of capacity, and combines
The battery pack of Cheng Xin.
In the above method, old and useless battery packet is discharged first, picks out underproof single battery further according to appearance degree
And disassemble, and open-circuit voltage and internal resistance detection are carried out to the single battery of appearance qualification, then open-circuit voltage and internal resistance is unqualified
Single battery dismantling, later to single battery carry out volume test, dismantling capacity be less than preset value single battery, finally will
Appearance, open-circuit voltage, internal resistance and the close single battery of capacity synthesize new battery pack.Based on the above process, the present invention passes through
Old and useless battery is observed, measured, is compared, obtains the parameter of single battery, and the close single battery of parameter is combined into
New battery pack, and then the utilization rate of old and useless battery is improved, effectively reduce the wasting of resources.
As a preferred method, in the step S1, the discharge current c rate of discharge process is 0.2C~0.5C, electric discharge
Current maxima is no more than 50A.
Further, it is comprised the following processes in the step S1: checking battery bag parameter, calculate battery by battery type
The series-parallel system of packet then ends for single Zhi Fang electricity to 2.5V if ferric phosphate lithium cell, if ternary lithium battery, then
Single Zhi Fang electricity ends to 3.0V, and makes its state-of-charge SOC 3%~5%.
The above process is as follows by the data that practical operation obtains: preparing single case voltage 268.8V 99AH, Dan Zhi electricity first
Core is that the ferric phosphate lithium cell of 5.5AH is derived as 84 strings 18 simultaneously by the nominal voltage of 3.2V, is by standard discharge cut-off voltage
84*2.5=210V stands 2 hours after electric discharge, then dismantles battery pack, carries out to power battery module and single battery appearance
It checks and records, dismantling processing is carried out to the battery core of bad order, deformation, leakage.In the present embodiment, discharge battery pack, it is main
If making elemental lithium concentrate at anode to make battery reach safe condition.
Further, in the step S1,2 hours are stood after battery pack electric discharge.In the step, standing 2 hours can make
After battery discharge, voltage reaches a stable state, and subsequent detection is facilitated to record.
In the present embodiment, the step S3 is comprised the following processes: the open-circuit voltage of each single battery is recorded, and
It is compared with the open-circuit voltage of standard single battery, voltage value is existed in 1.0V ferric phosphate lithium cell below and voltage value
2.0V ternary lithium battery below carries out dismantling processing.
On this basis, the step S3 further includes following process: the internal resistance of each single battery is recorded, and with
The internal resistance of standard single battery compares, and the be above standard single battery of internal resistance of single cell value 20% of internal resistance value is disassembled
Processing.
It is comprised the following processes after the step S3 as a preferred method: by the qualified monomer electricity of step S3 detection
Pond is 24 hours in parallel, until the open-circuit voltage of each single battery is identical, then the opening before in parallel with single battery by the open-circuit voltage
Road voltage compares, and recording voltage goes up and down data.
Further, further include following process after the step S3: in temperature being 40 DEG C by the single battery after parallel connection
It shelves 3-5 days, or shelves at room temperature 7-10 days under the conditions of~55 DEG C, detect and record the open-circuit voltage of single battery later
And internal resistance, then compared with the open-circuit voltage before shelving, dismantling processing is carried out to the single battery of voltage phase difference 50MV or more.Its
In, 40 DEG C~55 DEG C hot conditions can accelerate cell degradation, accelerate battery from power consumption.
In the present embodiment, the step S5 is comprised the following processes: being 0.5C electric to monomer as standard using discharge current c rate
Pond carries out charge-discharge test, obtains the battery capacity of single battery, and the single battery to battery capacity SOH less than 50% carries out
Dismantling processing.
Further, the step S5 further includes following process: bent with standard single battery state-of-charge, capacitance-voltage
Line, internal resistance assess the healthy shape of single battery according to open-circuit voltage and internal resistance size measured in step S3 as reference
State.
Finally, according to the above record case, compare waste and old power battery monomer show, open-circuit voltage, internal resistance, voltage drop and
Health state evaluation is classified single battery according to waste and old power battery monomer capacity, internal resistance, by the battery pack of same level-one
New battery pack is synthesized, echelon is used in different products.
Applying waste lithium ionic power battery cascade utilization screening method disclosed by the invention, having compared to existing technologies
Beneficial effect is, the present invention obtains the parameter of single battery by observing old and useless battery, measure, compare, and by parameter
Close single battery is combined into new battery pack, and then improves the utilization rate of old and useless battery, effectively reduces the wasting of resources.
The above is preferred embodiments of the present invention, is not intended to restrict the invention, all in technology model of the invention
Interior done modification, equivalent replacement or improvement etc. are enclosed, should be included in the range of of the invention protect.
Claims (10)
1. a kind of applying waste lithium ionic power battery cascade utilization screening method, which is characterized in that comprise the following steps that
Step S1 carries out discharge treatment to applying waste lithium ionic power battery pack；
Step S2 selects the underproof single battery of appearance and carries out dismantling processing；
Step S3 carries out open-circuit voltage and internal resistance detection to the single battery of appearance qualification, and open-circuit voltage and internal resistance is unqualified
Single battery dismantling；
The single battery of step S4, open-circuit voltage and internal resistance qualification carries out consumable electrical testing, and consumable electricity is greater than the set value
Single battery dismantling；
The single battery of step S5, open-circuit voltage and internal resistance qualification carries out volume test, and capacity is less than to the monomer of preset value
Battery dismantling；
Appearance, open-circuit voltage, internal resistance and the close single battery of capacity are divided into same rank, and are combined into new by step S6
Battery pack.
2. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
In S1, the discharge current c rate of discharge process is 0.2C~0.5C, and discharge current maximum value is no more than 50A.
3. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
It is comprised the following processes in S1: checking battery bag parameter, the series-parallel system of battery pack is calculated by battery type, if ferric phosphate
Lithium battery then ends for single Zhi Fang electricity to 2.5V, and if ternary lithium battery, then list Zhi Fang electricity ends to 3.0V, and
Make its state-of-charge SOC 3%~5%.
4. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
In S1,2 hours are stood after battery pack electric discharge.
5. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
S3 is comprised the following processes: being recorded to the open-circuit voltage of each single battery, and is made with the open-circuit voltage of standard single battery
Comparison, voltage value is disassembled in 1.0V ferric phosphate lithium cell below and voltage value in 2.0V ternary lithium battery below
Processing.
6. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
S3 further includes following process: the internal resistance of each single battery recorded, and is compared with the internal resistance of standard single battery, it will
The be above standard single battery of internal resistance of single cell value 20% of internal resistance value carries out dismantling processing.
7. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
It is comprised the following processes after S3: the qualified single battery of step S3 detection is 24 hours in parallel, until the open circuit of each single battery
Voltage is identical, then open-circuit voltage of the open-circuit voltage before in parallel with single battery is compared, and recording voltage goes up and down data.
8. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
Further include following process after S3: the single battery after parallel connection is shelved 3-5 days under the conditions of temperature is 40 DEG C~55 DEG C, or
It shelves at room temperature 7-10 days, detects and record open-circuit voltage and the internal resistance of single battery later, then is electric with the open circuit before shelving
Pressure compares, and carries out dismantling processing to the single battery of voltage phase difference 50MV or more.
9. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
S5 is comprised the following processes: being 0.5C as standard using discharge current c rate and is carried out charge-discharge test to single battery, obtains monomer electricity
The battery capacity in pond, and the single battery to battery capacity SOH less than 50% carries out dismantling processing.
10. applying waste lithium ionic power battery cascade utilization screening method as described in claim 1, which is characterized in that the step
Rapid S5 further includes following process: using standard single battery state-of-charge, capacitance-voltage curves, internal resistance as reference, according to step
Measured open-circuit voltage and internal resistance size, assess the health status of single battery in S3.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109856540A (en) * | 2019-02-14 | 2019-06-07 | 江苏慧智能源工程技术创新研究院有限公司 | A kind of recoverying and utilizing method and stage division of retired battery pack |
| CN109856562A (en) * | 2019-01-30 | 2019-06-07 | 华北电力大学 | Lithium battery echelon based on adaptive " I-U-R " method utilizes detection method |
| CN110336051A (en) * | 2019-06-05 | 2019-10-15 | 武汉理工大学 | The stage division that waste and old solid oxide fuel cell echelon utilizes |
| CN110611135A (en) * | 2019-08-23 | 2019-12-24 | 南方电网调峰调频发电有限公司 | Battery recycling method |
| CN110797591A (en) * | 2019-10-29 | 2020-02-14 | 深圳市普兰德储能技术有限公司 | Rapid sorting method for lithium power echelon cell recombination and lithium power echelon recombination battery |
| CN110927604A (en) * | 2019-12-11 | 2020-03-27 | 内蒙古科技大学 | Method for detecting micro short circuit of battery under limit condition |
| CN111430833A (en) * | 2020-04-22 | 2020-07-17 | 洛阳捷鑫能源科技有限公司 | Method for recycling waste lithium battery module |
| CN113488708A (en) * | 2021-05-31 | 2021-10-08 | 国网山东省电力公司滨州供电公司 | Method for recycling unqualified storage battery pack |
| CN113917344A (en) * | 2021-09-08 | 2022-01-11 | 东风时代(武汉)电池系统有限公司 | Power battery thermal runaway test protection method, power battery device and system |
| CN116027213A (en) * | 2023-02-07 | 2023-04-28 | 中国铁塔股份有限公司 | Retired battery grouping method and device, electronic equipment and readable storage medium |
| CN117410609A (en) * | 2023-12-15 | 2024-01-16 | 山西迪诺思新能源科技有限公司 | Echelon utilization method of waste power battery of new energy automobile |
| CN117644062A (en) * | 2024-01-30 | 2024-03-05 | 江苏华友能源科技有限公司 | Rapid sorting method for echelon utilization power batteries |
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| CN109856562A (en) * | 2019-01-30 | 2019-06-07 | 华北电力大学 | Lithium battery echelon based on adaptive " I-U-R " method utilizes detection method |
| CN109856540A (en) * | 2019-02-14 | 2019-06-07 | 江苏慧智能源工程技术创新研究院有限公司 | A kind of recoverying and utilizing method and stage division of retired battery pack |
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| CN110797591A (en) * | 2019-10-29 | 2020-02-14 | 深圳市普兰德储能技术有限公司 | Rapid sorting method for lithium power echelon cell recombination and lithium power echelon recombination battery |
| CN110797591B (en) * | 2019-10-29 | 2021-07-16 | 深圳市普兰德储能技术有限公司 | Rapid sorting method for lithium power echelon cell recombination and lithium power echelon recombination battery |
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| CN110927604A (en) * | 2019-12-11 | 2020-03-27 | 内蒙古科技大学 | Method for detecting micro short circuit of battery under limit condition |
| CN111430833A (en) * | 2020-04-22 | 2020-07-17 | 洛阳捷鑫能源科技有限公司 | Method for recycling waste lithium battery module |
| CN113488708A (en) * | 2021-05-31 | 2021-10-08 | 国网山东省电力公司滨州供电公司 | Method for recycling unqualified storage battery pack |
| CN113917344A (en) * | 2021-09-08 | 2022-01-11 | 东风时代(武汉)电池系统有限公司 | Power battery thermal runaway test protection method, power battery device and system |
| CN116027213A (en) * | 2023-02-07 | 2023-04-28 | 中国铁塔股份有限公司 | Retired battery grouping method and device, electronic equipment and readable storage medium |
| CN117410609A (en) * | 2023-12-15 | 2024-01-16 | 山西迪诺思新能源科技有限公司 | Echelon utilization method of waste power battery of new energy automobile |
| CN117410609B (en) * | 2023-12-15 | 2024-02-27 | 山西迪诺思新能源科技有限公司 | Echelon utilization method of waste power battery of new energy automobile |
| CN117644062A (en) * | 2024-01-30 | 2024-03-05 | 江苏华友能源科技有限公司 | Rapid sorting method for echelon utilization power batteries |
| CN117644062B (en) * | 2024-01-30 | 2024-04-05 | 江苏华友能源科技有限公司 | Rapid sorting method for echelon utilization power batteries |
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